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| author | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
| commit | 184ee94010786a9e0952aff3af39eba1d72287d3 (patch) | |
| tree | b7f4a680b4340f565951a599a6d86f88e61a1711 /nptl/pthread_mutex_trylock.c | |
| parent | 327ae2570744dabf7f065a6b529d16cc22438603 (diff) | |
| download | glibc-184ee94010786a9e0952aff3af39eba1d72287d3.tar.gz glibc-184ee94010786a9e0952aff3af39eba1d72287d3.tar.xz glibc-184ee94010786a9e0952aff3af39eba1d72287d3.zip | |
NPTL: Conditionalize direct futex syscall uses.
Diffstat (limited to 'nptl/pthread_mutex_trylock.c')
| -rw-r--r-- | nptl/pthread_mutex_trylock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c index 0867b06533..0293d0f629 100644 --- a/nptl/pthread_mutex_trylock.c +++ b/nptl/pthread_mutex_trylock.c @@ -191,6 +191,10 @@ __pthread_mutex_trylock (mutex) return 0; + /* The PI support requires the Linux futex system call. If that's not + available, pthread_mutex_init should never have allowed the type to + be set. So it will get the default case for an invalid type. */ +#ifdef __NR_futex case PTHREAD_MUTEX_PI_RECURSIVE_NP: case PTHREAD_MUTEX_PI_ERRORCHECK_NP: case PTHREAD_MUTEX_PI_NORMAL_NP: @@ -319,6 +323,7 @@ __pthread_mutex_trylock (mutex) return 0; } +#endif /* __NR_futex. */ case PTHREAD_MUTEX_PP_RECURSIVE_NP: case PTHREAD_MUTEX_PP_ERRORCHECK_NP: |